Scalable methods and tools to support thermographic data collection and analysis for energy audits.

Buildings consume 41% of energy produced in the US and contribute an increasing portion of total carbon dioxide emissions---40% in 2009 compared to 33% in 1980 [9]. One factor contributing to these issues is building age. Residential buildings, for example, constitute 95% of all buildings in the US and are on average over 50 years old [23]; most of these buildings were constructed using energy inefficient designs and their materials have degraded over time. Moreover, the US Department of Energy has set a goal of reducing housing energy use by up to 70% [18]. To meet this goal, renovations and retrofits of existing building stock has become a pressing need. One effective practice for motivating these improvements is energy auditing, which has seen a resurgence of interest in recent years [20].